Salzburg housing companies rely on solar heat

In May 2013, a 2,000 m² collector area began supplying the urban development project Stadtwerk Lehen with renewable energy (Photo: TiSUN)
In May 2013, a 2,000 m² collector area began supplying the urban development project Stadtwerk Lehen with renewable energy (Photo: TiSUN)

As of early this month, a complete residential area in Salzburg, with almost 300 homes, a kindergarten, a student residence and shops, is being heated by solar collectors with a surface area of over 2,000 m².

The first stage of the project "Stadtwerk Lehen" was initiated in late 2011. The first stage consisted of more than 1,550 m² of collector area on eleven low-energy buildings. The project has now been expanded by a further 500 m2 with large-area collectors from the Austrian manufacturer Tisun. The new panels were installed in the accompanying industrial area. The project was realised by Salzburg AG on a 42,000 square meter area of the Salzburg housing company and the non-profit housing company "Heimat Österreich".

"The use of a solar energy system with about 5 m² of collector per unit reduces the CO2 emissions of a single household by about 800 kg per year," explains Tisun CEO Robin M. Welling.

In addition to solar heat, a photovoltaic system is installed, which provides electricity for the residential area.

Jan Gesthuizen

Related Articles:

Tisun builds at dizzy heights

Austria's large plant subsidisation goes into the fourth round


Similar Entries

With 472 GWth installed at the end of 2017, solar heating and cooling was again the largest solar sector worldwide followed by Photovoltaics (402 GWp) and Concentrating Solar Power (5 GWel). The new report, Solar Heat Worldwide, highlights as well the increasing use of megawatt solar heating and cooling solutions for large public and private buildings as well as factories. The annual report was launched at the end of May by the IEA Solar Heating and Cooling Programme (IEA SHC). Lead author is the Austrian research institute AEE INTEC. With data from 66 countries, it is the most comprehensive annual evaluation of solar heating and cooling markets worldwide. In 2016 (most recent available data), the global solar thermal sector employed 708,000 people and reached a global turnover of EUR 16 billion (USD 19.2 billion).

E.ON wants to produce more wind energy in Germany. To implement this strategy, E.ON Climate & Renewables is now taking over the German activities of Kassel based Vortex Energy.

In order to meet the growing demand for cleaner and cheaper energy solutions, Aalborg CSP A/S have further optimized its concentrated solar power (CSP) technology and achieved significant cost-reduction as a result. With a new standardized lightweight structure, improved performance and up to 60% local sourcing opportunities, the 4th generation CSP parabolic trough technology, also called the AAL-TroughTM 4.0, enables solar heat worldwide to be an economically strong alternative to fossil fuels.

Operators of several gas-driven combined cycle power plants, or CCPPs, have notified the German Federal Network Agency of their systems’ final shutdown. These plants are no longer economically viable, as they have been running ever fewer hours because of a high proportion of cost-effective renewable grid electricity. Their shutdown will create a shortage of supply in district heating networks providing thermal energy to German municipalities. Utility-scale solar thermal plants equipped with seasonal storage could help close the gap at heat prices of around 36 EUR/MWh, Christian Holter said. Holter is the Managing Director of Austrian turnkey system supplier S.O.L.I.D., which has carried out feasibility studies on behalf of several European cities.